Hi. You have done an amazing job, and at 9 plus months, to be honest, she won’t need formula (or ebm- but it’s nice if you have it) when you are at work. she can just take a lunch box and water bottle - seriously! She can have food and water when you are not there. Out of interest, how much milk have you been expressing? For a baby this age 70-100 mls would be a full feed. Sometimes people perceive they have to leave much more. From personal experience I went back to full time work when my baby was 6weeks old. By the time he was 10 months olds I was “over it” and about to give up breastfeeding - until my health nurse clued me in to the fact that I could actually stop expressing and give food and water while I was at work and breastfeed other times.